File holder



Feb. 21, 1928.

H. H. CANTERBURY FILE HOLDER Filed July '7, 1925 I IN VEN TOR. HARRY H; CANTERBURY A TTORNEYS.

Patented Feb; 21, 1928.

HARRY HoR'ron CANTERBURY, or wnlrrinnoiamronnra, AssiGnon; 13",! Manor AND ASSIGNMENTS,'TO GE RGEG.GB-njFIrmoF'MoNnovIA, CALIFORNIA.

EILE noLnnR.

ma w as, an TI" This inventionrelates to file holders, and particularlyto a device for securing a in working PQSiQi 10 h t theft l f i O the operator can be distributed throughout the surface'ofthe file with'ver littlef e" 1 11% tion but with'materially beneficial resultsin the filing ope ationfand'whereby the'vvorl;

of reducing "or smoothii g surfaces can be i conducted with and thoroughness;

Anotli'er object'of the 'inventioiris to' 'p 'ovide aae'vie "of this characterwhereinTthe file may be operated over its work without possibility of gouging or otl'ierwiseinjuring the work. i

Another object of the invention isto pro vide a device ofthis character which may be rocked manually and moved over the work so as to induce evenness or uniformity in the cut or filing action, and whereby pressure may be applied equally to both ends of the file, enabling the device to be actuated with maximum efliciency.

I will describe only one form of file holder embodying my invention, and will then point out the novel features thereof in claims.

In the accompanying drawings,

Figure 1 is a view in side elevation the device;

Figure 2 is a section on line 2-2 of Figure 1; and

Figure 3 a sectionon line 33 of Figure 1.

In practice, I employ a stop or member 5 which may be cast, stamped or otherwise suitably formed from a single piece of material, so as to provide a longitudinally curved arm 6 and a substantially vertical handle 7, the latter located at one end of the arm, as illustrated. At the opposite end of the arm and formed as an integral part thereof is a manipulating or pressure knob 8, by means of which one hand of the operator may be used to apply force to the structure, while the other hand is employed to both manipulate the structure at the same time apply force thereto.

As stated, the arm 6 is preferably curved longitudinally. The base of the arm is flat, as shown at 9, Figures 2 and 3. I do not mean that'this of necessity must follow to a successful functioning of the device, and it shall be understood that in this respect deviations may be made so that the arm proper 4 .2.5.- ssal haw the form of the file em sbi tha tf when, one of these surfaces is worn the hl'e' may be reversed and the other sure it e exposed for use. The file-is formed of if. ble e talfan'd at points near the ends thereof are apertures 12 which are substanti ally of double truncated form so as to pro rideportions in communication whose walls merge in respectively different directions.

The purpose of this arrangement will present itself as the description goes forward.

' .irAtthe ends of the arm 6. are transverse openings 13 and pro ecting into these open-" ings are the upper ends or threaded shanks of screws 14. These screws extend upwardly in vertical openings 15 formed in the arm and'at points beneath the arms these screws are provided with flat heads 16. In the openings 18 in co-action with the threaded shanks of the screws, are nuts 17 which are -designed to regulate adjustments of the screws. The screws are adapted to be passed through the apertures 12 in the file 10, and when this is done the shanks of thescrews are passed throughthe openings 15 and engaged with the nuts 17. The screws are now turned so as to elevate the ends of the file 10, as clearly illustrated in Figure 1, the 5 nuts 17 being held against rotation by the walls of the openings 13. This flexes or convexes the under surface of the file and provides a medial portion which is correlated to the handle 7 so that a line of force indicated at A, Figure 1, will be applied with appropriate effect to the said medial portion.

Having described the details of construc- 'tion of the device, the operation is manifestly obvious, but it shall be here stated that I have secured the file 10 to the arm 6 in a manner whereby the lattercan be reciprocated over the work to be smoothed or reduced, and if desired, one hand of the op,

erator may be engaged with the handle 7 1 as I distributed throughout the file. hen one surface of the file is Worn, the file can be quickly and conveniently removed and its position reversed With respect to the arm (5, so as to expose its other surface.

' Altliough I have herein shown and described only one form of file holder embodying my invention, it is to be understood that various changes and modifications may be made therein Without departing from the spirit of the invention and the spirit and scope of the appended claims.

I claim as my invention:

1; A file holder comprising'an arm having a flat longitudinally curved base, a handle at one end of the arm, a pressure knob at the other end of the arm, means for holding a file contiguous to the curved surface of the arm, said means comprising elevating screws carried by the arm at the ends thereof and adapted to engage With the respective ends of a file.

ings for holding a file contiguous to the convexed surface While elevating the ends of the file at the ends of the arm.

3. A file holder comprising an arm having a longitudinally conveXed base surface, a handle and pressure knob on the holder and provided With transverse openings, openings formed in the ends of thearms and communlcating Qwrththe transverse open ngs, and means ad ustable in the openings and associatedwith a file for elevating the ends of.

the file so 'thatd'he latter is disposed contiguous to the ,convexed surface of the arm.

nAnRYnonToN CANTERBURY; 

